Machine for scouring and polishing cereals



(NoMa deL) W. AGER.

I MAGHiNE FOR. SGOURING AND POLISHING CEREALS. N0. 295,4'7L. PatentedMar. 18,1884.

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To all whom it may concern.-

Nirnn'. STATES PATENT OFFICE.

WILSON AGER, or New YORK, N. Y.

MACHINE FOR SCOURINGAND POLISHING CEREALS- SPECIFICATION forming part ofLetters Patent No. 295,471, dated March 18, 1884. Application filedAugust 22, 1 83. (N model.)

- Be it known that I, WILSON AGER, a citizen of the United States,residing at New York, in

the county and State of New York, have invented new and usefulImprovements in Machines for Securing and Polishing Cereals, of whichthe following is a specification.

My invention relates to machines for scouring and decorticating cereals;and it consists in the combination of an outer drum having its innerside constructed or provided with an imperforate abrading surface andwith gauze sectionsat intervals in its wall, with an internal cylinderhaving its exterior-surface constructed or provided with a surface ofbristles, and with blast-apertures in its walls, and air-forcing devicesat the end of the cylinder, whereby the cereals introduced between .thedrum and cylinder are secured and decoraccompanying drawings, in whichFigure l is a central vertical section taken through the machine.section taken on the line 2 2, Fig. 1. Fig. 3 is a central verticalsection of the outer cylinder, the other parts being removed. Fig. 4 isa plan of the end of the inner revolving cylinder.

A in said drawings indicates any suitable frame-work by which theoperative parts are supported. At the top and bottom thereof are placedcross-beams a a, respectively, and upon the latter is placed a bearing,b, in which is stepped a vertical shaft, B, the bearing being covered bya hood, I), to prevent. the entrance of dust. The upper end of the shafthas support in the cross-beam a, which is further strengthened by across-tie, a, running at right angles to the beam a. The shaft B isprovided with a bandpulley, B, and its eX- tremity may be stepped in asecond pair of cross-ties, 00".

Upon the shaft B is keyed a cylinder, 0, which is constructed in thefollowing manner:

Fig. 2 is a horizontal Each cylinder-head c is flanged, as shown at c,and the cylinder-body c" is bolted to these flanges. The body iscomposed of anysuitable material, and is inade in two, three, or moresections, with intermediate openings, D, which are partly covered byflaps d, secured to the body portions and bentinward, leaving space forthe passage of air, the openings between the flaps and the body portionsbeing in the direction of rotation. The outer surface of the cylinder iscovered with short closelyset bristles 0 or, instead thereof, tampico oran equivalent .Inaterial' may be employed.

Each, cylinder-head c is providedwith two,

three, or more openings, I), each being partly covered by a flap orinclined plate, d. 'These openings are placed as near the periphery aspossible, and the openings of the inclined plates face in the directionin which the cylinder rotates, whereby the air above and below is caughtby the plates and forced into the interior of the cylinder. r

E represents an outer drum surrounding the cylinder 0 and having supportupon the frame A. It is composed of any suitable material,

and it is constructed with an imperforate abrading-surface on itsinside,- composed of emery, Derbyshire stone, or other suitable abradingmaterial. The outer drum is concentric with the innerfcylinder, and hassuch diameter that thegrain, when introduced into the intermediatespace,will be subjected to friction by both the inner and outer cylindricalsurfaces. In the wall of the outer drum, E, are formed two, three, ormore vertical openings, extending to a point not far from the lower end,and covered by wire gauze F. The construction of this portion of theapparatus is shown in the sectional view in Fig. 3, in which 6 represents the cylindrical body of said drum, having an imperforatescouring and decorticating abrasive surface of the kind described. Thebody of the drum is composed of a material suitable for the purpose, andis set within an upper hoop, G, and a lower hoop, H, the latter having acone-shaped lower portion terminating in a chute, I, through which IOOproper receptacles above down between the revolving cylinder G and theouter drum, E.

The operation of the device is as follows: As the grain descends throughthe chute or hopper-trough L it passes between the inner revolvingcylinder, 0, and the outer drum, E, whereby it is thoroughly cleansed,secured, and polished, and is deprived of its outer husk or skin. Theair-blast, which is created by the rotation of the inner cylinderthrough the hooded openings D (1, drives the dust out through thewire-gauze-covered openings in the outer shell or drum, while the grainthus scoured or decorticated descends through the hopper-chute I. Agauze-covered opening, *6, is formed in the latter to admit air to thelower head of the cylinder 0, and at the same time exclude foreignmatters.

Instead of using wire-gauze to cover the openings in the outer drum, Imay employ zinc or steel plates having slotted openings, as they areless liable to clog or choke, and either material is within the scope ofmy present in vention.

Having thus described my invention, what I claim is- 1. A grain scouringand decorticating apparatus, combining in its structure an outer drumhaving its walls constructed with an imperforate abradingsurfaceprovided at intervals with foraminous sections, and an inner cylinderhaving its wall constructed with blastopenings and means for inducingair into the cylinder and driving it through the blast-openings thereinand through the foraminous sections, substantially as .described.

2. A grain scouring and decorticating apparatus, combining in itsstructure an outer drum having its wall constructed with an imperforateabrading surface provided with gauze sect-ions at intervals, an innercylinder having blast-apertures, an external surface of bristles, and anair-opening at its end, and means for inducing air into the air-openingsand forcing it through the blast-apertures and the gauze sections of thedrum, substantially as described.

3. A grain securing and decorticating apparatus, combining in itsstructure an outer drum having its wall constructed with an imperforateabrading-surface having gauze sections arranged therein at intervals, aninterior cylinder, and means for driving air through the inner cylinderand the gauze sections of the imperforate abrading-surface of the outerdrum, substantially as described.

4. A grain scouring and decorticating apparatus, combining in itsstructure an upright drum having its wall provided with verticalopenings and an imperforate abrading-surface, gauze pieces arranged inthe vertical openings, and an internal cylinder having vertical openingsand bristles, and provided at its end with air-forcing hooded openings,substantially as described.

5. The combination, with the inner cylinder having air-forcing devicesin its two heads, of the lower hopper and grain-chute having agauze-covered air-opening to admit air to the lower end of the cylinder,substantially as described.

In testimony whereof Ihavc hereunto set my hand in the presence of twosubscribing witnesses.

WILSON AGER. \Vitnesses:

JAMES L. NoRms, J. A. RUTHERFORD.

